US523263A - cannot - Google Patents

Description

. Sheets She'et 1.

(No Model.)

G. A. CANNOT. PROOESS OF MANUFACTURING HYPOCHLOROUS ASID- No. 523,263. Patented July 1'7, 1894.

(No Model.) 2 SheetsSheet 2.

G. A. OANNGT. PROCESS OF MANUFAGTURING EYPOGHLOROUS ACID. No. 523,263; Patented. July 1'7, 1894.

' bleaching of peat fiber.

. chlorine gas on leaving its generator is alties, and into a receiver where they are dried Unrrn S'rnrss Parana ruins,

GUSTAVE ADOLPH E CANNOT, OF LONDON ENGLAND,

PROCESS OF MANUFACTURI NG HYPOCHLOROUS AClD.

SPECIFIQJATION florming part of Letters Patent No. 523,263, dated July 17, 1894. 7

Application filed September 22, 1893. Serial No. 486,218. (N0

specimens.) Patented in Bnglantlhngust l,' 1891, No. 13,102;

inZI'rsnce September 18, 1891 No. 216,200; in Belgium September 18, 1891 No. 96,437, and in Austria-Hungary October To all whom it may concern.-

Be it known that I, GUSTAVE ADOLPHE (JAN-' NOT, manufacturer, asubject of the Queen of Great Britain, residing at London, in the county of llliddlcsex, England, have invented a certainnew and useful Improved Process for the Manufacture of Hypochlorous Acid, (for which I have obtained Letters Patent of Great Britain, dated August 1,1801, No. 13,102; of France, dated SeptombcrlS, 1801, No. 216,200; of Belgium, dated September 18, 1801, No. 96,437, and of Austriadlurigary, dated Octoher 5, 1892, No. 21,771,) of which the following is a specification.

My invention relates to an improved process for the manufacture of hypochlorous acid, for bleaching purposes, and especiallyfor the The said process is as follows:0xygen and chlorine gases are produced in separate generators and are 00H. t-ine'd in ozone tubes. The

lowed to bubble up through a solution of chloride of sodium, and the oxygen gas through plain water, contained in suitable vessels, and from thence they pass through washing vessels where they leave any remaining impuriand mixed together, and from which they pass together into an apparatus kept cooloy a current of cold water,- in which they are submitted to the action of a stream of electric sparks. The mixed gases combine in this apparatus, that is to say the chlorine attaining its re-' quired degree of oxidation passes into the state of chlorine monoxide which being un-' stable and dangerous ina free state is passed into an alkaline solution such as caustic soda or potash, by which it is absorbed.

The oxygen gas is produced preferably by the action of sulphuric acid upon peroxide of manganese, and thechlorine gas is produced in a somewhatsimilar way to the oxygemby the action of hydrochloric acid upon peroxide of manganese.

The chlorine and oxygen gases, after leaving the washing vessels pass separatelyto the apparatus hereinafter described in wh ch-- Figure 1 represents a perspective view of the apparai us. Fig. 2 represents a central longitudinal section of the drying and mixing and having a apparatus. Fig. 3 represents a central longitudinal section of the ozonizing apparatus, andFig. 4 represents a transverse section of the ozone tubes. i

The same'parts are indicated by the same letters throughout the several views.

This apparatus forms the subject matter of the claims in my application, Serial No. 480,216, filed September 22, 1803, and is not claimed in this application.

This apparatus consists of a-rectangular box a lined with glass and having at its opposite sides and top, windows a of transparent glass through which the interior can be observed; perforated partition 0 upon which are placed fragments of pumice stone .0 impregnated with sulphuric acid, or other desiccating material. The chlorine gas is admitted above through the pipe (2 and has a specific gravity of 1.33, while the oxygen ad mitted below through the pipe e has a specific gravity of only 1.05, so that the former has a tendency topass down through the perforations in the partition I), while the latter tends to rise up through them. As fresh bubbles of both gases are constantly arriving they becomod mixed together and dried, and pass forward and out through a pipef at the other end of the box a, through which they pass to the oxidizing apparatus, Fig. 1, shown on a larger scale in Fig. 3, the object of which is to render the oxidation of the chlorine much more energetic, by the presence of ozone in the air, thus obtaining considerable advantage,in which however the liability to'dangerous explosions has to be guarded against where they pass together through tubes .in which they are subjected to the action of electric sparks. To avoid such explosions, or to render. them harmless, if in spite of precautions they (Fig. 3) about 0.008 millimeter diameter and 0.002 millimeter thick, and about 1.50 millimeters long, is arranged horizontally, through the center of which passes a copperwire B, coated with silver, gold, or preferably platinum. This wire ends at a short distance (about 0.05 millimeter). from the outer end of the tube 0, its other end B being connected to one of the poles of an electrical induction coil .1. Outsidethe tube 0, O, O, is coiled should occur, a glass tube (1,0',

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any a similar wire 6", which ends at a ii frem the inner and of thetube,

- bv- E'Tfiwfi to the sther The tube?) which 1 .0 a lm'ger glass it is supported ports h shown in L. 213s tbmugh the k pej from the mixing appaj fiescribed, and a, stream of e1ec- 1 swhich pass; between the Wires from etisn coii, and tic-rough the inner glass cause the gases to combine red proporiions to the WiTGS in the are inau- & poi-09min tube 1-1 glazed inside containe'l in cuter cam 02 2,126. a eaek V through a funnel V nns-ms cut through the pipe H aml 0001: U a induction coil J is connected with a in apemtian by afiyuamo ii, 0? sufam"; of an suitabla kind.

mi, c-izlosrino monoxide, is .03 through a.- ipe provided. 1' waive 0 a, pine G which wands mam to the: *boatem of a. swssel or 02m boy containing wad; 1' with which if: unites", forming hypochlormm @nt of. @he 5111585 mama is The herein m in thoroughly oxygen ami ehkm 216' through i eriingr r 3 London, I

U passing eiectrls spark-.3

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